:root {
            --primary-color: #1a365d;
            --secondary-color: #c53030;
            --accent-color: #d69e2e;
            --light-color: #f7fafc;
            --dark-color: #2d3748;
            --text-color: #4a5568;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Inter', sans-serif;
            color: var(--text-color);
            line-height: 1.7;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-family: 'Playfair Display', serif;
            color: var(--primary-color);
            font-weight: 600;
        }
        .section-header {
            margin-bottom: 3rem;
            text-align: center;
        }
        .section-header h2 {
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
            margin-bottom: 0;
        }
        .section-header h2:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: var(--secondary-color);
        }
        .section-header .lead {
            max-width: 700px;
            margin: 1rem auto 0;
        }
        .hero-section {
            background: linear-gradient(rgba(26, 54, 93, 0.9), rgba(26, 54, 93, 0.8)), url('https://images.unsplash.com/photo-1490481651871-ab68de25d43d?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            color: white;
            padding: 180px 0 120px;
            position: relative;
        }
        .hero-section h1 {
            color: white;
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
        }
        .hero-section .lead {
            font-size: 1.25rem;
            margin-bottom: 2rem;
            max-width: 700px;
        }
        .btn-primary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            padding: 12px 30px;
            font-weight: 500;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #9c2c2c;
            border-color: #9c2c2c;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .btn-outline-light:hover {
            background-color: rgba(255,255,255,0.1);
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
            padding: 15px 0;
            transition: var(--transition);
        }
        .navbar-brand {
            font-family: 'Playfair Display', serif;
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .nav-link {
            color: var(--dark-color) !important;
            font-weight: 500;
            margin: 0 8px;
            transition: var(--transition);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--secondary-color) !important;
        }
        .about-section, .services-section, .products-section, .contact-section {
            padding: 100px 0;
        }
        .about-section {
            background-color: var(--light-color);
        }
        .icon-box {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
            transition: var(--transition);
            height: 100%;
        }
        .icon-box:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .icon-box i {
            font-size: 2.5rem;
            color: var(--secondary-color);
            margin-bottom: 1.5rem;
        }
        .card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .card-img-top {
            height: 220px;
            object-fit: cover;
        }
        .product-card .badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--secondary-color);
        }
        .contact-info-box {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
            text-align: center;
            height: 100%;
            transition: var(--transition);
        }
        .contact-info-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .contact-info-box i {
            font-size: 2.5rem;
            color: var(--secondary-color);
            margin-bottom: 1.5rem;
        }
        .flink {
            display: inline-block;
            background: var(--light-color);
            color: var(--dark-color);
            padding: 10px 20px;
            border-radius: 5px;
            margin: 5px;
            transition: var(--transition);
            text-decoration: none;
            font-weight: 500;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 80px 0 30px;
        }
        footer h5 {
            color: white;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 10px;
        }
        footer h5:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--secondary-color);
        }
        footer a {
            color: #cbd5e0;
            text-decoration: none;
            transition: var(--transition);
        }
        footer a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            margin-top: 50px;
            text-align: center;
            color: #a0aec0;
            font-size: 0.9rem;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--secondary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            text-decoration: none;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: var(--primary-color);
            color: white;
        }
        @media (max-width: 992px) {
            .hero-section h1 {
                font-size: 2.8rem;
            }
            .hero-section {
                padding: 150px 0 100px;
            }
            .about-section, .services-section, .products-section, .contact-section {
                padding: 80px 0;
            }
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.3rem;
            }
            .hero-section .lead {
                font-size: 1.1rem;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .navbar {
                padding: 10px 0;
            }
        }
        .timeline {
            position: relative;
            max-width: 1200px;
            margin: 0 auto;
        }
        .timeline::after {
            content: '';
            position: absolute;
            width: 6px;
            background-color: var(--primary-color);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -3px;
        }
        .timeline-item {
            padding: 10px 40px;
            position: relative;
            width: 50%;
            box-sizing: border-box;
        }
        .timeline-item::after {
            content: '';
            position: absolute;
            width: 25px;
            height: 25px;
            right: -13px;
            background-color: white;
            border: 4px solid var(--secondary-color);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }
        .left {
            left: 0;
        }
        .right {
            left: 50%;
        }
        .left::before {
            content: " ";
            height: 0;
            position: absolute;
            top: 22px;
            width: 0;
            z-index: 1;
            right: 30px;
            border: medium solid var(--primary-color);
            border-width: 10px 0 10px 10px;
            border-color: transparent transparent transparent var(--primary-color);
        }
        .right::before {
            content: " ";
            height: 0;
            position: absolute;
            top: 22px;
            width: 0;
            z-index: 1;
            left: 30px;
            border: medium solid var(--primary-color);
            border-width: 10px 10px 10px 0;
            border-color: transparent var(--primary-color) transparent transparent;
        }
        .right::after {
            left: -13px;
        }
        @media (max-width: 768px) {
            .timeline::after {
                left: 31px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            .timeline-item::before {
                left: 60px;
                border: medium solid var(--primary-color);
                border-width: 10px 10px 10px 0;
                border-color: transparent var(--primary-color) transparent transparent;
            }
            .left::after, .right::after {
                left: 18px;
            }
            .right {
                left: 0%;
            }
        }
        .certifications img {
            max-height: 80px;
            margin: 15px;
            transition: var(--transition);
        }
        .certifications img:hover {
            transform: scale(1.05);
        }
        .stat-box {
            text-align: center;
            padding: 30px 20px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 15px 0;
            transition: var(--transition);
        }
        .stat-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .stat-box .number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary-color);
            line-height: 1;
            margin-bottom: 10px;
        }
        .stat-box .label {
            font-size: 1rem;
            color: var(--text-color);
            font-weight: 500;
        }
        .text-content {
            max-width: 900px;
            margin: 0 auto 50px;
        }
        .text-content p {
            margin-bottom: 1.5rem;
        }